Scientists have uncovered a remarkable fossil from Canada's Burgess Shale, a discovery that reshapes how the evolution of arthropods is understood. This new find, named Mosura fentoni, lived roughly ...

Mosura fentoni belongs to an extinct group of early arthropods. However, Mosura has something that has not been seen in other radiodont. It has an abdomen-like body region made up of several segments ...

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Several fossils of Mosura additionally show details of internal anatomy, including elements of the nervous system, circulatory system, and digestive tract. "Very few fossil sites in the world offer ...